html {
    color: #333;
    /*规定主色调,依据业务场景(非必须)*/
    background: #F6F6F6;
    /*规定主背景,依据业务场景(非必须)*/
    overflow-y: auto;
    /*如果有溢出自动形成滚动条*/
    -webkit-text-size-adjust: 100%;
    /*不想让iPhone横坚屏切换的时候调节文字*/
    -ms-text-size-adjust: 100%;

    /* 配合 rem单位使用 */
    font-size: 100px;
   }
   
   html * { /*所有元素*/
    outline: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0); 
    /*去除移动端开发点击事件灰色背景如a标签*/
   }

   body {
    margin: 0;
    font-size: 0.14em;
    line-height: 1.5;
    font-family: PingFangSC-Regular, Hiragino Sans GB, Helvetica Neue, Helvetica, STHeiTi, sans-serif; 
    -webkit-font-smoothing: antialiased;
  }
   
   body,html,#root{
       width: 100%;
       height: 100%;
   }
   article,
   aside,
   blockquote,
   body,
   button,
   code,
   dd,
   details,
   div,
   dl,
   dt,
   fieldset,
   figcaption,
   figure,
   footer,
   form,
   h1,
   h2,
   h3,
   h4,
   h5,
   h6,
   header,
   hgroup,
   hr,
   input,
   legend,
   li,
   menu,
   nav,
   ol,
   p,
   pre,
   section,
   td,
   textarea,
   th,
   ul {
    margin: 0;
    padding: 0;
   }
   
   input,
   select,
   textarea {
    font-size: 100%;
   }
   
   table {
    border-collapse: collapse;
    border-spacing: 0;
   }
   
   fieldset,
   img {
    border: none;
   }
   
   address,
   caption,
   cite,
   code,
   dfn,
   em,
   th,
   var {
    font-style: normal;
    font-weight: 500;
   }
   
   ol,
   ul {
    list-style: none;
   }
   
   
   h1,
   h2,
   h3,
   h4,
   h5,
   h6 {
    font-size: 100%;
    font-weight: 500;
   }
   
   q:after,
   q:before {  /*在<q></q>标签之间的文字两头加上引号*/
    content: '';
   }
   
   a{
    text-decoration: none;
   }
   
   /*input*/
   button {
    border: none;
   }
   
   button,
   html input[type='button'],
   input[type='reset'],
   input[type='submit'] {
    -webkit-appearance: button;  /*渲染成button的风格*/
    text-transform: none;
    outline: none;
   }
   
   input::-webkit-input-placeholder,
   textarea::-webkit-input-placeholder {
    color: #999;  /*输入框提示语的字体样式*/
   }
   
   input::-webkit-inner-spin-button {/*解决input的type="number"在部分手机端会出现一个小按钮*/
    -webkit-appearance: none;/*去除系统默认appearance的样式,常用于IOS下移除原生样式*/
   }
   
   input::-webkit-outer-spin-button {/*解决input的type="number"在部分手机端会出现一个小按钮*/
    -webkit-appearance: none;
   }
   
   textarea {
    vertical-align: top;
   }
   
   button,
   input {
    line-height: normal;
   }
   
   select {
    margin: 0;
    outline: 0;
   }
   
   input.fixAKeyboard:focus,
   textarea.fixAndroidKeyboard:focus {
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
    -webkit-user-modify: read-write-plaintext-only;
   }
   
   input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 1000px white inset !important;
   }
   
   button,
   input[type=button],
   input[type=checkbox],
   input[type=reset],
   input[type=submit],
   label {
    cursor: pointer;
    user-select: none;
    -ms-user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
   }
   
   input[type=submit] {
    -webkit-user-modify: read-plaintext-only;
    -moz-user-modify: read-plaintext-only;
    -ms-user-modify: read-plaintext-only;
    -o-user-modify: read-plaintext-only;
    user-modify: read-plaintext-only;
   }
   
   input[type='search']::-webkit-search-cancel-button,
   input[type='search']::-webkit-search-decoration {
    -webkit-appearance: none;
   }
   
   input[type='search'] {
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    -webkit-appearance: textfield;
   }
   
   
   /*flex box*/
   .flex {
    display: flex;
    /* OLD - Android 4.4- */
    display: -webkit-flex;
    /* OLD - iOS 6-, Safari 3.1-6 */
    display: -moz-flex;
    /* OLD - Firefox 19- (buggy but mostly works) */
    display: -ms-flexbox;
    /* TWEENER - IE 10 */
    display: -webkit-flex;
    /* NEW - Chrome */
    display: flex;
    -webkit-box-lines: multiple;
    -webkit-flex-wrap: wrap;
    -moz-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    -o-flex-wrap: wrap;
    flex-wrap: wrap;
   }
   
   .justify-between {
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -ms-flex-pack: justify;
    justify-content: space-between;
   }
   
   .justify-center {
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
   }
   
   .vertical {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
   }
   
   *,
   *:before,
   *:after {
    box-sizing: border-box; /*所有元素以border开始计算盒子大小*/
   }
   
   .clearfix:after,
   .clearfix:before {   /*清除浮动*/
    content: " ";
    display: table;
   }
   
   .clearfix:after {
    clear: both;
   }
   
   .fl {
    float: left;
   }
   
   .fr {
    float: right;
   }